JPH0577648A - Structure for installing on-vehicle type fuel cell power generating set - Google Patents

Abstract

PURPOSE:To provide an on-vehicle type fuel cell generating set which is prevented form being damaged by rear-end collision and the like, and is so high in safety that no passenger suffers from explosion even when the generating set would be induced into explosion, should the set be damaged and so on. CONSTITUTION:For a fuel cell generating set 4 which is installed in a rear machine room 3 partitioned from the passenger cabin 2 of a car body 1, an impact absorbing beam 8 is provide in such a way that the rear and side sections of the peripheral area are surrounded, and explosion-proof walls 9 and 10 are concurrently provided so that a surface area partitioning a space interspaced from the passenger cabin and an upper surface are covered. And furthermore, relief ports 7a for explosion blast are opened at a base stand 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted fuel cell power generator installation structure which is mounted on an electric vehicle such as a bus and applied to a driving power source thereof.

[0002]

2. Description of the Related Art Recently, development of electric vehicles such as buses having a fuel cell power generator installed in a vehicle body has been promoted by taking advantage of low pollution and high power generation efficiency of the fuel cell.
In parallel with this development project, commercialization of a fuel cell power generator for vehicle installation is currently in progress. FIG. 3 is an image view of such an electric vehicle (bus), and a fuel cell power generator 4 is housed in a machine room 3 separated from a passenger compartment 2 of a vehicle body 1 and divided into a rear portion of the vehicle body. The fuel cell power generator 4 is composed of a fuel cell 5, a fuel reformer 6, various auxiliary machines, and a base stand 7 on which these various devices are mounted.

By the way, the conventional fuel cell power generator is generally used by being installed and operated in a dedicated building of a power generation facility separated from a living area. Except for a special case, an electric vehicle (bus) is used. The current situation is that there is no use example to generate electric power by mounting it on a vehicle traveling on a general road with passengers.

[0004]

In the fuel cell power generator mounted on an automobile such as a bus as described above, unlike the conventional case where the fuel cell power generator is installed and operated in a dedicated building, the power generator is adjacent to the passenger compartment. Since it is installed in a machine room, it is necessary to take sufficient measures especially in terms of safety. That is, since the fuel cell uses hydrogen gas as the reaction gas, if the reaction gas leaks from the fuel cell due to damage to the fuel cell power generator during vehicle operation, the hydrogen gas will directly react with the air. There is a risk of explosion. On the other hand, in the case of an unforeseen situation such as a driving error or a rear-end collision of another vehicle, a strong impact force is applied to the fuel cell power generator installed on the vehicle body, If the fuel cell is damaged due to this, the hydrogen gas may leak or explode as described above.

The present invention has been made in view of the above points, and an object thereof is to prevent damage to a power generator as much as possible due to a rear-end collision of an automobile, and to prevent an explosion if the power generator is damaged. An object of the present invention is to provide an installation structure for a vehicle-mounted fuel cell power generator that prevents damage to passengers and crew members aboard the vehicle even if it is triggered.

[0006]

In order to solve the above problems, the present invention is configured as follows. (1) For the fuel cell power generator installed in the rear machine room of the vehicle body, a beam for shock absorption is provided at least on the rear side of the peripheral area. (2) For the fuel cell power generator installed in the machine room of the vehicle body, an explosion-proof protective wall is provided to cover the area separating the passenger compartment and the upper area. (3) For the fuel cell power generator installed in the machine room of the vehicle body, in addition to the above-mentioned explosion-proof protective wall, a base frame on which the power generator is mounted is provided with a blast escape opening.

[0007]

In the above structure, the beam for shock absorption provided on the rear side of the peripheral region of the fuel cell power generator functions similarly to the bumper of an automobile, and in the unlikely event of a rear-end collision, the beam from the rear can be used. Before the impact force is applied to the power generator, the beam is deformed to absorb the impact force and protect the fuel cell power generator from damage. It should be noted that this shock absorbing beam is preferably provided so as to surround the rear side and the left and right sides of the power generation device at the time of implementation.

Further, the explosion-proof protective wall which covers the surface area and the upper surface area of the fuel cell power generator that separates the passenger compartment from the passenger compartment should an explosion occur due to damage to the power generator. ,
Prevents the passenger compartment from being damaged by the blast and debris. Furthermore, in this case, by providing an opening in the base mount on which the power generator is placed, the blast generated by the explosion escapes to the lower side of the vehicle body through the opening in the base mount, which may cause damage to the passenger cabin. It can be suppressed even more slightly and the safety is enhanced.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, with respect to the fuel cell power generator 4 installed in the rear machine room 3 of the vehicle body 1, the rear side of its peripheral region,
Around the side and the side, a shock absorbing beam 8 similar to the bumper 1a mounted on the vehicle body of the automobile is provided,
Explosion-proof protective partitions 9 and 10 made of steel plate having sufficient strength and plate thickness are provided so as to cover the front area and the upper area that partition between the power generator 4 and the passenger compartment 2. Further, a blast escape hole 7a is opened in the base plate of the base stand 7 of the power generator 4.

With such a structure, when a strong impact force is applied from the rear or side of the vehicle body due to a rear-end collision of an automobile or the like, the beam 8 absorbs the impact force before the impact force directly reaches the fuel cell power generator 4. Protect the generator set. In addition, even if hydrogen gas leaks from the fuel cell 5 or the like and causes an explosion, the protective walls 9 and 10 prevent the debris and the blast scattered around to spread to the passenger compartment 2 due to this. The blast is discharged below the vehicle body 1 through the escape hole 7a of the base frame 7. Therefore, it is possible to prevent the passengers, crew members, etc. who are boarding the passenger compartment 2 from being damaged.

[0011]

As described above, according to the installation structure of the vehicle-mounted fuel cell power generator of the present invention, the damage of the power generator due to the rear-end collision of the automobile is prevented and the damage caused by the accidental explosion of the power generator. Can be prevented from reaching passengers and the safety can be improved.

[Brief description of drawings]

FIG. 1 is a configuration perspective view of an installation structure of a fuel cell power generator according to an embodiment of the present invention.

FIG. 2 is a side view of a main part of FIG.

FIG. 3 is an image diagram of the entire electric vehicle equipped with a fuel cell power generator.

[Explanation of symbols]

 1 vehicle body 2 passenger compartment 3 machine room 4 fuel cell power generator 7 base mount 7a blast escape hole 8 shock absorbing beam 9 protective bulkhead 10 protective bulkhead

Claims (3)

[Claims] 1. A vehicle-mounted fuel cell power generator including a fuel cell power generator installed in a rear machine room of a vehicle body, wherein a beam for absorbing shock is installed at least at a rear side of a peripheral region of the fuel cell power generator. Construction. 2. A vehicle characterized in that a fuel cell power generator installed in a machine room of a vehicle body is provided with an explosion-proof protective wall covering a surface area for partitioning a passenger compartment and an upper surface area. Installation structure of on-board fuel cell power generator. 3. A fuel cell power generator installed in a machine room of a vehicle body is provided with an explosion-proof protective wall covering a surface area separating the passenger compartment and an upper surface area, and further mounting a power generator. An installation structure for a vehicle-mounted fuel cell power generator, characterized in that an opening for blast escape is provided on the installed base stand.